<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>列表样式</title>
</head>
<style>
  ul{
      list-style: none;/*加在Ul或者li上面都能去除前面的黑点*/
      list-style-image: url("img/manor-2.jpg");/*将前面的点换为图片*/
      list-style-position: outside;/*前面的点是否在表格内*/
  }
  ul>li{
      border: 1px solid red;
  }
</style>
<body>
<ul>
  <li>床前明月光</li>
  <li>疑是地上霜</li>
  <li>举头望明月</li>
  <li>低头思故乡</li>
</ul>
</body>
</html>